#region License

// The MIT License
//
// Copyright (c) 2006-2008 DevDefined Limited.
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#endregion

using System.Collections.Generic;
using DevDefined.OAuth.Framework;
using DevDefined.OAuth.Storage;

namespace DevDefined.OAuth.Testing
{
  /// <summary>
  /// A simple nonce store that just tracks all nonces by consumer key in memory.
  /// </summary>
  public class TestNonceStore : INonceStore
  {
    readonly Dictionary<string, List<string>> _nonces = new Dictionary<string, List<string>>();

    public bool RecordNonceAndCheckIsUnique(IConsumer consumer, string nonce)
    {
      List<string> list = GetNonceListForConsumer(consumer.ConsumerKey);
      lock (list)
      {
        if (list.Contains(nonce)) return false;
        list.Add(nonce);
        return true;
      }
    }

    List<string> GetNonceListForConsumer(string consumerKey)
    {
      var list = new List<string>();

      if (!_nonces.TryGetValue(consumerKey, out list))
      {
        lock (_nonces)
        {
          if (!_nonces.TryGetValue(consumerKey, out list))
          {
            list = new List<string>();
            _nonces[consumerKey] = list;
          }
        }
      }

      return list;
    }
  }
}